Figure 4.
Tests for prognostication and treatment selection in pulmonary arterial hypertension (PAH). WHO: World Health Organization; 6MWT: 6-min walk test; CPET: cardiopulmonary exercise testing; V′O2: oxygen uptake; DL,CO: diffusing capacity of the lung for carbon monoxide; NT-proBNP: N-terminal pro-brain natriuretic peptide; BNP: brain natriuretic peptide; RHC: right heart catheterisation; CI: cardiac index; TAPSE: tricuspid annular plane systolic excursion; MRI: magnetic resonance imaging; RVEDVI: right ventricular end-diastolic volume index; LVEDVI: left ventricular end-diastolic volume index; PC SVI: phase-contrast stroke volume index.